Drones used to find toylike "butterfly" land mines

SUMMARY: A type of land mine called the “butterfly” has a particularly insidious reputation for two reasons: It is known for killing or crippling children who may pick up what looks a lot like a green plastic toy, and its mostly nonmetallic construction means it often evades traditional mine detectors. Butterfly mines’ light-touch detonators go off easily if stepped on by a fighter—or farmer—and their relatively small charge often maims people without immediately killing them.